Petite Julien features 5MM trillion-cut lab-grown white sapphires set between sleek 18k gold vermeil bars. Refined proportions make it versatile and wearable for everyday. The Fine Print: Metal: 18k gold vermeil - a 2.5 micron layer of gold over sterling silver. Setting: Bar set Stone Type: Lab-grown white sapphire Stone Shape: Trillion cut Carat: 15 inches, 14 CTW DEW 16 inches, 14.5 CTW DEW What is Lab-Grown?